Tenon and turning chuck



BART-ON A. WHI'ISETT,

TENON AND TU PATENT OFFICE.-

OF LEBANON, INDIANA.

RNING CHUCK.

SPECIFICATION forming part of Letters Patent No. 271,753, dated February 6, 1883.

' Application filed May 15,1882, (No model.)

To all whom it may concern:

- Be it. known that I, BARTON A. WHITSET'I,

acitizen of the United States, residing at Lebanon, in the county of Boone and State of Indiana, have invented certain new and useful Improvementsin Tenon and Turning Chucks; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled inthe art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a partof this specification.

My invention relates to an implement for tenoning or ornamenting chair-rounds or other articles, and adapted for service upon the mandrel of a turning-lathe or the like; and the novelty consists in the construction and arrangement of parts as will be more fully hereinafter set forth, and specifically pointed out in the claim.

The object of the invention is to form a round tenon upon a chair-round, and at the same time form an annular groove upon the tenon, or to form ornamental molding upon different articles by adjustable gages, chisels, or knives; and to this effect theinvention consists essentially in an elbow-lever pivoted to the main frame, one end of which is provided with a plate adapted to operate in the tenonforming chamber,and the other with an arm to which is adj ustably secured agouge or chisel, said chisel being forced inward into operative contact with the tenon or the like by the press ure of the blank through the lever, the constant force of a spring holding the said tool out of contactwhen the pressure is released. The depth of the annular groove or grooves may thus be readily made to suit the desires of the operator at will, both by the manipulation of the blank and the adjustability of the tools. An adjustable chisel with inclined and rounded edge forms the round tenon and 0ccupies one side ofthe tenon-chamber, and the gouge or chisel approaches from the opposite side and occupies the opposite side of the said main frame or block, having spindle or shank a for connection to the revolving mandrel of a lathe, and having an inclined guideway, I),

ing rounded edgeb, and secured to the frame A by a set-screw, b allowing it to be adjusted at will. The edge of the cutter B is adapted to operate in the chamber 0, in which the blank is forced.

' Pivoted at d to the frame A is an elbow-lever, D, having a plate, d, upon one extremity, which is located in the chamber 0 when the device is in operation, and having loosely secured to the other end an arm, E, the lower end, 0, of whichjoperates in a slot,f, in an adjustable removable and interchangeable tool, F, which operates in guides A in the frame A, and is held in such guides by a screw'-cap,j", as shown. A spring, Gr, exerts a constant force against the arm E to hold the tool F out of operation, and said tool is thus inactive until the force of the spring is overcome through the pivoted elbow-lever I), operated by the tenon against the plate d.

Arrangements may be made for two or more tools being secured to the arm E at the same time, and the tool-edges may be of any desired conformation.

The device is peculiarly adapted to form a round tenon upon a chair-round and form an annular groovein such tenon, in which groove the wood fibers of the chair-bar operate to hold the round without glue.

Various modifications in details of con struction may be made without departing from the principle or sacrificing the advantages of my invention, the'essentia-l elements of which will be readily comprehended by'the foregoing description in connection with the drawings.

WVhat-I claim as new is i In a turning and tenoning chuck, the elbowlever I), having plate d, the arm E, carrying interchangeable tool F, combined with the frame A, the adjustable cutter B, having rounded edge b, and the spring Gr for holding the tool out of operation when the plate (1 is not forced backward, substantially as specified.

In testimony whereofI affix my signature in presence of two witnesses.

BARTON A. WHITSETT.

Witnesses: r

CHARLES M. HARRISON, THOMAS J. GAsoN.

for the reception of a slotted cutter, B, hav-' 

